<?php 
session_start();
 $_SESSION["username2"]="";
  $_SESSION["box11"]="";
   $_SESSION["box22"]="";
    $_SESSION["box33"]="";
	 $_SESSION["box44"]="";
	  $_SESSION["box55"]="";
	   $_SESSION["box66"]="";
	    $_SESSION["box77"]="";
		 $_SESSION["box88"]="";
		  $_SESSION["box99"]="";
 
 header("Location:index.php");
?>